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sparc.md (setjmp): Handle PIC mode and use the hard frame pointer. 

* config/sparc/sparc.md (setjmp): Handle PIC mode and use the hard
	frame pointer.

From-SVN: r174013
This commit is contained in:
Eric Botcazou 2011-05-21 22:49:05 +00:00 committed by Eric Botcazou
parent bd9a3248ab
commit abd9a770ee
2 changed files with 18 additions and 6 deletions
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5
gcc/ChangeLog
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@ -1,3 +1,8 @@
2011-05-21 Eric Botcazou <ebotcazou@adacore.com>
* config/sparc/sparc.md (setjmp): Handle PIC mode and use the hard
frame pointer.
2011-05-21 Eric Botcazou <ebotcazou@adacore.com>
* config/sparc/sparc.c (eligible_for_return_delay): Do not return

19
gcc/config/sparc/sparc.md
View File

@ -6507,8 +6507,8 @@
(const_int 4)))])
;; For __builtin_setjmp we need to flush register windows iff the function
;; calls alloca as well, because otherwise the register window might be
;; saved after %sp adjustment and thus setjmp would crash
;; calls alloca as well, because otherwise the current register window might
;; be saved after the %sp adjustment and thus setjmp would crash.
(define_expand "builtin_setjmp_setup"
[(match_operand 0 "register_operand" "r")]
""
@ -6547,19 +6547,26 @@
(eq_attr "pic" "true")
(const_int 4)] (const_int 3)))])
;; Pattern for use after a setjmp to store FP and the return register
;; into the stack area.
;; Pattern for use after a setjmp to store registers into the save area.
(define_expand "setjmp"
[(const_int 0)]
""
{
rtx mem;
if (flag_pic)
{
mem = gen_rtx_MEM (Pmode,
plus_constant (stack_pointer_rtx,
SPARC_STACK_BIAS + 7 * UNITS_PER_WORD));
emit_insn (gen_rtx_SET (VOIDmode, mem, pic_offset_table_rtx));
}
mem = gen_rtx_MEM (Pmode,
plus_constant (stack_pointer_rtx,
SPARC_STACK_BIAS + 14 * UNITS_PER_WORD));
emit_insn (gen_rtx_SET (VOIDmode, mem, frame_pointer_rtx));
emit_insn (gen_rtx_SET (VOIDmode, mem, hard_frame_pointer_rtx));
mem = gen_rtx_MEM (Pmode,
plus_constant (stack_pointer_rtx,